Examples with AttachExistingElementFeature com.vaadin.flow.internal.nodefeature.AttachExistingElementFeature used on opensource projects

Example 1 with AttachExistingElementFeature

use of com.vaadin.flow.internal.nodefeature.AttachExistingElementFeature in project flow by vaadin.

the class AttachExistingElementRpcHandler method handleNode.

@Override
protected Optional<Runnable> handleNode(StateNode node, JsonObject invocationJson) {
    assert invocationJson.hasKey(JsonConstants.RPC_ATTACH_REQUESTED_ID);
    assert invocationJson.hasKey(JsonConstants.RPC_ATTACH_ASSIGNED_ID);
    assert invocationJson.hasKey(JsonConstants.RPC_ATTACH_TAG_NAME);
    assert invocationJson.hasKey(JsonConstants.RPC_ATTACH_INDEX);
    int requestedId = (int) invocationJson.getNumber(JsonConstants.RPC_ATTACH_REQUESTED_ID);
    int assignedId = (int) invocationJson.getNumber(JsonConstants.RPC_ATTACH_ASSIGNED_ID);
    String tag = invocationJson.getString(JsonConstants.RPC_ATTACH_TAG_NAME);
    int index = (int) invocationJson.getNumber(JsonConstants.RPC_ATTACH_INDEX);
    AttachExistingElementFeature feature = node.getFeature(AttachExistingElementFeature.class);
    StateTree tree = (StateTree) node.getOwner();
    StateNode requestedNode = tree.getNodeById(requestedId);
    if (assignedId == -1) {
        // handle an error
        assert index == -1;
        ChildElementConsumer callback = feature.getCallback(requestedNode);
        assert callback != null;
        callback.onError(feature.getParent(requestedNode), tag, feature.getPreviousSibling(requestedNode));
        feature.unregister(requestedNode);
    } else {
        Element element = Element.get(tree.getNodeById(assignedId));
        attachElement(feature, element, index, tree.getNodeById(requestedId), requestedId == assignedId);
    }
    return Optional.empty();
}

Example 2 with AttachExistingElementFeature

use of com.vaadin.flow.internal.nodefeature.AttachExistingElementFeature in project flow by vaadin.

the class AttachExistingElementRpcHandlerTest method handleNode_requestedIdAndAssignedIdAreDifferent.

@Test
public void handleNode_requestedIdAndAssignedIdAreDifferent() {
    AttachExistingElementRpcHandler handler = new AttachExistingElementRpcHandler();
    int requestedId = 1;
    int assignedId = 2;
    int index = 3;
    JsonObject object = Json.createObject();
    object.put(JsonConstants.RPC_ATTACH_REQUESTED_ID, requestedId);
    object.put(JsonConstants.RPC_ATTACH_ASSIGNED_ID, assignedId);
    object.put(JsonConstants.RPC_ATTACH_TAG_NAME, "div");
    object.put(JsonConstants.RPC_ATTACH_INDEX, index);
    StateNode node = Mockito.mock(StateNode.class);
    StateNode requested = Mockito.mock(StateNode.class);
    StateNode assigned = Mockito.mock(StateNode.class);
    StateTree tree = Mockito.mock(StateTree.class);
    Mockito.when(node.getOwner()).thenReturn(tree);
    Mockito.when(tree.getNodeById(requestedId)).thenReturn(requested);
    Mockito.when(tree.getNodeById(assignedId)).thenReturn(assigned);
    Mockito.when(assigned.hasFeature(Mockito.any())).thenReturn(true);
    AttachExistingElementFeature feature = new AttachExistingElementFeature(node);
    Node<?> parentNode = Mockito.mock(Node.class);
    ChildElementConsumer consumer = Mockito.mock(ChildElementConsumer.class);
    Element sibling = Mockito.mock(Element.class);
    feature.register(parentNode, sibling, requested, consumer);
    Mockito.when(node.getFeature(AttachExistingElementFeature.class)).thenReturn(feature);
    handler.handleNode(node, object);
    assertNodeIsUnregistered(node, requested, feature);
    Mockito.verify(parentNode, Mockito.times(0)).insertChild(index, Element.get(assigned));
    Mockito.verify(consumer).accept(Element.get(assigned));
}

Example 3 with AttachExistingElementFeature

use of com.vaadin.flow.internal.nodefeature.AttachExistingElementFeature in project flow by vaadin.

the class AttachExistingElementRpcHandlerTest method handleNode_error.

@Test
public void handleNode_error() {
    AttachExistingElementRpcHandler handler = new AttachExistingElementRpcHandler();
    int requestedId = 1;
    JsonObject object = Json.createObject();
    object.put(JsonConstants.RPC_ATTACH_REQUESTED_ID, requestedId);
    object.put(JsonConstants.RPC_ATTACH_ASSIGNED_ID, -1);
    object.put(JsonConstants.RPC_ATTACH_TAG_NAME, "div");
    object.put(JsonConstants.RPC_ATTACH_INDEX, -1);
    StateNode node = Mockito.mock(StateNode.class);
    StateNode requested = Mockito.mock(StateNode.class);
    StateTree tree = Mockito.mock(StateTree.class);
    Mockito.when(node.getOwner()).thenReturn(tree);
    Mockito.when(tree.getNodeById(requestedId)).thenReturn(requested);
    AttachExistingElementFeature feature = new AttachExistingElementFeature(node);
    Node<?> parentNode = Mockito.mock(Node.class);
    ChildElementConsumer consumer = Mockito.mock(ChildElementConsumer.class);
    Element sibling = Mockito.mock(Element.class);
    feature.register(parentNode, sibling, requested, consumer);
    Mockito.when(node.getFeature(AttachExistingElementFeature.class)).thenReturn(feature);
    handler.handleNode(node, object);
    Mockito.verify(consumer).onError(parentNode, "div", sibling);
    assertNodeIsUnregistered(node, requested, feature);
}

Example 4 with AttachExistingElementFeature

use of com.vaadin.flow.internal.nodefeature.AttachExistingElementFeature in project flow by vaadin.

the class AttachExistingElementRpcHandlerTest method handleNode_requestedIdEqualsAssignedId.

@Test
public void handleNode_requestedIdEqualsAssignedId() {
    AttachExistingElementRpcHandler handler = new AttachExistingElementRpcHandler();
    int requestedId = 1;
    int index = 2;
    JsonObject object = Json.createObject();
    object.put(JsonConstants.RPC_ATTACH_REQUESTED_ID, requestedId);
    object.put(JsonConstants.RPC_ATTACH_ASSIGNED_ID, requestedId);
    object.put(JsonConstants.RPC_ATTACH_TAG_NAME, "div");
    object.put(JsonConstants.RPC_ATTACH_INDEX, index);
    StateNode node = Mockito.mock(StateNode.class);
    StateNode requested = Mockito.mock(StateNode.class);
    StateTree tree = Mockito.mock(StateTree.class);
    Mockito.when(node.getOwner()).thenReturn(tree);
    Mockito.when(tree.getNodeById(requestedId)).thenReturn(requested);
    Mockito.when(requested.hasFeature(Mockito.any())).thenReturn(true);
    AttachExistingElementFeature feature = new AttachExistingElementFeature(node);
    Node<?> parentNode = Mockito.mock(Node.class);
    ChildElementConsumer consumer = Mockito.mock(ChildElementConsumer.class);
    Element sibling = Mockito.mock(Element.class);
    feature.register(parentNode, sibling, requested, consumer);
    Mockito.when(node.getFeature(AttachExistingElementFeature.class)).thenReturn(feature);
    handler.handleNode(node, object);
    assertNodeIsUnregistered(node, requested, feature);
    Mockito.verify(parentNode).insertChild(index, Element.get(requested));
    Mockito.verify(consumer).accept(Element.get(requested));
}